(often President) an elected head of state in a republic
chiefly NAmer the chief officer of an organization, e.g. a business corporation or university
an official chosen to preside over a meeting or assembly
presidential /-ʹdensh(ə)l/ adj
presidentially /-ʹdensh(ə)li/ adv
[Middle English via French from Latin praesident-, praesidens, present part. of praesidēre: see preside]